Technical datasheet

GENIOSIL® XT 50

Supplied byWacker- Last Updated on Jun 25, 2025

GENIOSIL® XT 50 by Wacker is a silicone-modified polyether-based alpha-silane-terminated polymer. It contains high density crosslinkable silyl groups which cure to a tight-mesh network that is very strong but elastic. It represents the first technically equivalent alternative to conventional polyurethane-based systems. It is used as a reactive binder for elastic sealants, in industrial adhesives and for sealing flat surfaces.
  • Exhibits tear resistance, low viscosity and is easy to process at low temperatures.
  • It is highly ductile and will tear only when subjected to strong forces.
  • GENIOSIL® XT 50 can be formulated without fillers to make transparent, tin-free end products that have good mechanical properties.
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For which system

Sealants|
Adhesives

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GENIOSIL® XT 50 properties

Other properties

PropertiesValue & unitTest conditionTest method
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